Interlocking type plastic tile structure

ABSTRACT

This invention relates to an interlocking type plastic tile structure in which the surface layer having a pattern thereon is coated with adhesive and then is combined with a PVC base layer adhered to the floor. A plurality of protruding tongues and a plurality of notches are respectively formed on two adjacent sides of the PVC base layer. With this structure, when two such plastic tiles are interlocked with respect to each other, the notches having adhesive layer are interlocked and adhered with the protruding tongues correspondingly so as to achieve assembly and good alignment. Besides, there is no need for providing release paper, therefore cost can be saved and assembly is very convenient.

BACKGROUND OF THE INVENTION

1. Field of the Invention

This invention relates to an interlocking type plastic tile structure, especially to an interlocking type plastic tile structure which is simple in assembling and precise in insertion and alignment by the formation of protruding tongues and notches capable of interlocking.

2. Brief Description of the Prior Art

The adhering structure of ordinary plastic tile, as shown in FIG. 5, substantially has printed layer between a main body (51) and a transparent leather (54), and the printed layer further includes a PVC leather material (52) and a printed pattern layer (53). The main body (51) is essentially formed by the mixing of PVC powder, calcium carbonate and toughening agent (DOP). The printed pattern layer (53) can be printed either on the bottom face of the transparent leather (54) or on the surface of the PVC leather material (52). Hot pressing is conducted on the main body (51), the PVC leather material (52), and the transparent leather (54) so that they are integrated and combined together to form plastic tile. The plastic tile thus formed is a piece of square or rectangular body which is then adhered on the floor piece by piece. However, the plastic tiles are apt to become oblique during adhesion by this method.

In view of the above defect, the structure disclosed in U.S. Pat. No. 7,155,871 B1 is proposed, as shown in FIGS. 6 and 7, in which a surface layer (6) and a base layer (61) to be adhered on the floor are essentially provided. The surface layer (6) and the base layer (61) are combined in staggered state such that the protruding portions (60), (62) are formed on two adjacent sides of the surface layer (6) and the base layer (61). An adhesive layer (63) is provided on the upper end surface of the protruding portion (62) of the base layer (61) and a release paper (64) is provided on the adhesive layer (63).

When plastic tiles are adhered in construction site, the base layer (61) of a plastic tile is adhered to the floor first, and then the release paper (64) is peeled apart from the adhesive layer (63) of the protruding portion (62) of the base layer (61). Thereafter, the protruding portion (60) of the surface layer (6) of another plastic tile is adhered with respect to the adhesive layer (63) of the protruding portion (62) of the base layer (61). In this manner, the plastic tiles can be adhered in order till finish.

However, this method has following shortcomings:

1. The protruding portions of the surface layer and the base layer are bigger in areas; this will cause bigger allowance of adhering two plastic tiles together so that there is bad alignment on plastic tiles. Eventually, the entire floor is not beautiful.

2. Release paper for protection purpose has to be provided on the protruding portion of the base layer having bigger area when manufacturing the plastic tile. Thus, manufacturing cost is high in this case.

In view of the above shortcomings, inventor of this invention proposes an interlocking type plastic tile structure according to the research and improvement conducted on conventional structure and its defects, based on profound experience in R&D and manufacturing in relevant field, with a purpose to achieve better performance value in practical application.

SUMMARY OF THE INVENTION

The main object of the interlocking type plastic tile structure of the present invention is to reduce the manufacturing cost of plastic tile, to enable good alignment of two plastic tiles, and to eliminate the requirement of coating adhesive on floor at construction site so as to make the construction easier and to achieve good appearance effect.

The object and effectiveness of the interlocking type plastic tile structure of the present invention can be achieved by the following technology.

Essentially, the surface layer having pattern provided thereon is coated with adhesive and is combined with the PVC base layer in contact with floor, a plurality of protruding tongues and a plurality of notches being respectively formed on two adjacent sides of the PVC base layer. With this structure, when two such plastic tiles are interlocked with respect to each other, the notches having adhesive thereon are interlocked and adhered with the corresponding protruding tongues so as to finish assembly process and to achieve good alignment. Besides, there is no need to provide release paper, therefore cost can be saved and assembling can become very easy.

Moreover, the protruding tongues and the notches of the interlocking type plastic tile of the present invention are formed as dovetail shape. Alignment effect can be achieved in more stable manner by the mutual insertion and interlocking of the dovetail protruding tongues and the dovetail notches.

The upper surface of the interlocking type plastic tile structure of the present invention is combined with pattern which can be formed as stone material leather (marble leather), wood material leather (log leather), ceramic tile, cured resin coating, printed plastic baseboard, pure plastic tile, rubber tile, bamboo straw mat, wood tile, stone material tile etc., so as to enhance the aesthetic feeling and the selectivity of the plastic tile.

The upper surface of the interlocking type plastic tile structure of the present invention can be provided with a transparent protective layer so as to protect the surface layer.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective schematic view of the interlocking type plastic tile of the present invention.

FIG. 2 is a schematic exploded view showing the assembly of the interlocking type plastic tile of the present invention.

FIG. 3 is a schematic perspective view showing the assembly of the interlocking type plastic tile of the present invention.

FIG. 4 is a sectional schematic view showing the assembly of the interlocking type plastic tile of the present invention.

FIG. 5 is a sectional schematic view of a first prior art.

FIG. 6 is a schematic exploded view of the assembly of a second prior art.

FIG. 7 is a schematic perspective view of the assembly of the second prior art.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The technical content, objects and effectiveness of the present invention will become more apparent by the detailed description of a preferred embodiment of the present invention in conjunction with the accompanying drawings.

Firstly referring to FIGS. 1 to 4 showing a perspective appearance and a schematic exploded assembly view of the interlocking type plastic tile structure of the present invention, in which the plastic tile comprises:

a PVC base layer (1), being a base layer contacted with floor, the PVC base layer (1) can be a rigid PVC material in which a plurality of protruding tongues (11) and notches (12) are provided at respective two adjacent sides;

a surface layer (2), the lower surface of which is coated with adhesive (21) so as to be adhered with the PVC base layer (1), the adhesive (21) being exposed to the outside at the notches (12) for the purpose of adhering with the corresponding protruding tongue (11) on the PVC base layer (1) of the next plastic tile, the upper surface having pattern thereon which can be formed as stone material leather (marble leather), wood material leather (log leather), ceramic tile, cured resin coating, printed plastic baseboard, pure plastic tile, rubber tile, bamboo straw mat, wood tile, stone material tile etc.;

a transparent protective layer (3) attached on the upper surface of the surface layer (2) so as to protect the patter.

Referring again to FIGS. 1 to 4, the plastic tile can be formed as a square or rectangular body in which the lower surface of the surface layer (2) is coated with adhesive (21), and then it is combined with the PVC base layer (1) together in such a manner that the plural notches (12) of the PVC base layer (1) are flush with the two adjacent sides of the surface layer (2). Thus, the adhesive (21) is exposed at the surface layer (2) where the corresponding inserting notch (12) is present, and simultaneously the plural protruding tongues (11) of the PVC base layer (1) project at another two sides of the surface layer (2).

When assembling plastic tiles, the notches (12) of the PVC base layer (1) of one plastic tile are engaged and interlocked with the protruding tongues (11) of the PVC base layer (1) of another plastic tile, each inserting notch (12) is able to conduct precise matching with the corresponding protruding tongue (11), and simultaneously to adhere in stable manner with the protruding tongue (11) by the adhesive (21) at the surface layer (2) where the corresponding inserting notch (12) is present. In this manner, a plurality of plastic tiles can be well paved. There is not need to coat adhesive on the floor during the pavement of the plastic tiles of the present invention, as the plastic tiles can be in close-contact with the floor by the mutual engagement and interlocking action. Therefore, it can achieve the effect of convenience in paving.

Moreover, the protruding tongue (11) and the inserting notch (12) can be designed as dovetail shape. The plastic tiles of the present invention can be well paved by mutual engagement and interlocking of the dovetail shape protruding tongues (11) and the dovetail shape notches (12) so as to achieve good alignment in more stable manner.

The above embodiment and drawings are not used to limit the structural aspect of dimension of the present invention. Appropriate variations or modifications conducted by the person with general acknowledge in the art is regarded to be still within the scope of the invention.

Based on foregoing description, the interlocking type plastic tile structure of the present invention has the following advantages when comparing with prior art:

1. In the interlocking type plastic tile structure of this invention, a plurality of notches are engaged and interlocked with corresponding protruding tongues so as to achieve the effect of precise alignment. Furthermore, the plastic tiles after paving remain stationary without slipping or displacement happened such that there is no need to coat adhesive on the floor. Therefore, it can achieve the effect of paving convenience.

2. In the interlocking type plastic tile structure of this invention, two plastic tiles to be engaged are adhered with each other directly by the adhesive coated on the lower surface of the surface layer where the notches are present. There is no need to provide the protection of release paper. Therefore, manufacturing cost can be saved and assembly can be conducted in convenient manner.

3. In the interlocking type plastic tile structure of this invention, the protruding tongues and the notches are designed as dovetail shape such that plastic tiles can be well aligned by the mutual engagement and interlocking of the dovetail shape protruding tongues and the dovetail shape notches.

Summing up above, the embodiment of the present invention is surely able to reach expected effectiveness in application, and the specific structure disclosed herein is not only unprecedented in the same category of product but also not open to the public before application. 

1. An interlocking type plastic tile structure, comprising: a PVC base layer, being a base layer contacted with floor, in which a plurality of protruding tongues and notches are provided at respective two adjacent sides; a surface layer the lower surface of which is coated with adhesive so as to be adhered with the PVC base layer, said adhesive being exposed at the notches for the purpose of adhering with the corresponding protruding tongue on the PVC base layer of the next plastic tile.
 2. An interlocking type plastic tile structure as claimed in claim 1, wherein a transparent protective layer is attached on the upper surface of the surface layer.
 3. An interlocking type plastic tile structure as claimed in claim 1, wherein said protruding tongue and said inserting notch are designed as dovetail shape.
 4. An interlocking type plastic tile structure as claimed in claim 1, wherein said PVC base layer is a rigid PVC material.
 5. An interlocking type plastic tile structure as claimed in claim 1, wherein said surface layer is a ceramic tile.
 6. An interlocking type plastic tile structure as claimed in claim 1, wherein said surface layer is a cured resin.
 7. An interlocking type plastic tile structure as claimed in claim 1, wherein said surface layer is a printed plastic tile.
 8. An interlocking type plastic tile structure as claimed in claim 1, wherein said surface layer is pure plastic tile.
 9. An interlocking type plastic tile structure as claimed in claim 1, wherein said surface layer is a rubber tile.
 10. An interlocking type plastic tile structure as claimed in claim 1, wherein said surface layer is bamboo straw mat.
 11. An interlocking type plastic tile structure as claimed in claim 1, wherein said surface layer is wood tile.
 12. An interlocking type plastic tile structure as claimed in claim 1, wherein said surface layer is stone tile.
 13. An interlocking type plastic tile structure as claimed in claim 1, wherein said plastic tile is square shape.
 14. An interlocking type plastic tile structure as claimed in claim 1, wherein said plastic tile is rectangular shape. 